<!DOCTYPE html>
<html lang="en">

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body,
        html,
        #allmap {
            width: 100%;
            height: 100%;
            overflow: hidden;
            margin: 0;
            font-family: "微软雅黑";
        }
        
        #allmap {
            position: relative;
        }
        
        #tools {
            position: absolute;
            left: 0;
            top: 0;
            z-index: 1000;
        }
    </style>
    <script type="text/javascript" src="https://api.map.baidu.com/api?type=webgl&v=1.0&ak=G1LFyjrNGIkns5OfpZnrCGAKxpycPLwb"></script>
    <script type="text/javascript" src="https://api.map.baidu.com/library/TrackAnimation/src/TrackAnimation_min.js"></script>
    <title>地图展示</title>
</head>

<body>
    <div id="allmap"></div>
    <div id="tools">
        <button id="start">播放动画</button>
        <button id="end">停止播放</button>
    </div>
</body>

</html>
<script type="text/javascript">
    var bmap = new BMapGL.Map("allmap"); // 创建Map实例
    bmap.centerAndZoom(new BMapGL.Point(116.297611, 40.047363), 17); // 初始化地图，设置中心点坐标和地图级别
    bmap.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放
    var path = [{
        'lng': 116.297611,
        'lat': 40.047363
    }, {
        'lng': 116.302839,
        'lat': 40.048219
    }, {
        'lng': 116.308301,
        'lat': 40.050566
    }, {
        'lng': 116.305732,
        'lat': 40.054957
    }, {
        'lng': 116.304754,
        'lat': 40.057953
    }, {
        'lng': 116.306487,
        'lat': 40.058312
    }, {
        'lng': 116.307223,
        'lat': 40.056379
    }];
    var point = [];
    for (var i = 0; i < path.length; i++) {
        point.push(new BMapGL.Point(path[i].lng, path[i].lat));
    }
    var pl = new BMapGL.Polyline(point);
    var trackAni = new BMapGLLib.TrackAnimation(bmap, pl, {
        overallView: true, // 动画完成后自动调整视野到总览
        tilt: 30, // 轨迹播放的角度，默认为55
        duration: 20000, // 动画持续时长，默认为10000，单位ms
        delay: 3000 // 动画开始的延迟，默认0，单位ms
    });
    document.getElementById('start').addEventListener('click', function() {
        trackAni.start();
    });
    document.getElementById('end').addEventListener('click', function() {
        trackAni.cancel(); // 强制停止动画
    });
</script>